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Modified epoxy resin with fluorescent characteristic and preparation method thereof

A technology with epoxy resin and fluorescent properties, applied in epoxy resin coatings, chemical instruments and methods, luminescent materials, etc., can solve problems such as aggregation-induced quenching effects, achieve convenient preparation operations, and ensure stability

Active Publication Date: 2016-10-12
SUZHOU JIREN HIGH TECH MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Traditional organic or inorganic fluorescent pigments, in addition to the above-mentioned advantages and problems, have the disadvantage that, in solid state or poor solvent system, due to the aggregation of fluorescent molecules, it is easy to cause aggregation-induced quenching effect

Method used

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  • Modified epoxy resin with fluorescent characteristic and preparation method thereof
  • Modified epoxy resin with fluorescent characteristic and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] First of all, the raw materials for the synthesis of this kind of modified epoxy resin fluorescent resin with fluorescent properties are selected, and the raw materials are composed of E12 bisphenol A epoxy resin, diphenylmethane diisocyanate, monomethyloltetraphenylethylene, three The molar ratio range between them is 1:4:4, which is dissolved in a mixed solvent composed of xylene, cyclohexanone and n-butanol, and the mass concentration is 10wt%.

[0028] The mixed solvent used is mixed according to the following volume percentages:

[0029] Xylene 40vol%;

[0030] Cyclohexanone 50vol%;

[0031] n-Butanol 10vol%.

[0032] Secondly, the obtained modified epoxy resin with fluorescent properties of the present invention, its preparation method is as follows:

[0033] Step 1: Mix and dissolve diphenylmethane diisocyanate and monohydroxymethyltetraphenylethylene in a mixed solvent composed of xylene, cyclohexanone and n-butanol. Under nitrogen protection, the reaction te...

Embodiment 2

[0037] First of all, the raw materials for the synthesis of this kind of modified epoxy fluorescent resin with fluorescent properties are selected, and the raw materials are composed of E21 bisphenol A epoxy resin, diphenylmethane diisocyanate, dimethyloltetraphenylethylene, three The molar ratio range between them is 3:4:2, which is dissolved in a mixed solvent composed of xylene, cyclohexanone and n-butanol, and the mass concentration is 20wt%.

[0038] The mixed solvent used is mixed according to the following volume percentages:

[0039] Xylene 50vol%;

[0040] Cyclohexanone 30vol%;

[0041] n-Butanol 20vol%.

[0042] Secondly, the obtained modified epoxy resin with fluorescent properties of the present invention, its preparation method is as follows:

[0043] Step 1: Mix and dissolve diphenylmethane diisocyanate and dimethyloltetraphenylethylene in a mixed solvent composed of xylene, cyclohexanone, and n-butanol. Under nitrogen protection, the reaction temperature is c...

Embodiment 3

[0047] First of all, the raw materials for the synthesis of this kind of modified epoxy fluorescent resin with fluorescent properties are selected, and the raw materials are composed of E44 bisphenol A epoxy resin, diphenylmethane diisocyanate, tetramethyloltetraphenylethylene, three The molar ratio range between them is 8:4:1, which is dissolved in a mixed solvent composed of xylene, cyclohexanone and n-butanol, and the mass concentration is 40wt%.

[0048] The mixed solvent used is mixed according to the following volume percentages:

[0049] Xylene 70vol%;

[0050] Cyclohexanone 15vol%;

[0051] n-Butanol 15vol%.

[0052] Secondly, the obtained modified epoxy resin with fluorescent properties of the present invention, its preparation method is as follows:

[0053] Step 1: Mix and dissolve diphenylmethane diisocyanate and tetramethyloltetraphenylethylene in a mixed solvent composed of xylene, cyclohexanone, and n-butanol. Under nitrogen protection, the reaction temperatur...

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Abstract

The invention discloses modified epoxy resin with a fluorescent characteristic and a preparation method thereof. The modified epoxy resin with the fluorescent characteristic is prepared from bisphenol-A type epoxy resin, methylene diphenyl diisocyanate and tetraphenylethylene derivatives, wherein the molar ratio of the bisphenol-A type epoxy resin to methylene diphenyl diisocyanate to the tetraphenylethylene derivatives is (1-10):4:(1-4); the prepared modified epoxy resin with the fluorescent characteristic is dissolved into a mixed solvent prepared from xylene, cyclohexanone and n-butyl alcohol, and the mass concentration ranges from 10 wt% to 60 wt%. According to the modified epoxy resin with the fluorescent characteristic and the preparation method thereof, the process that fluorescent powder needs to be added in subsequent preparation is avoided; in addition, a fluorescent coating with the obvious fluorescent characteristic can be obtained according to the aggregation-induced emission mechanism after the modified epoxy resin is cured, and therefore the quenching effect of the resin in a solid state is avoided.

Description

technical field [0001] The invention relates to the field of modified epoxy resins, in particular to a modified epoxy resin with fluorescent properties and a preparation method thereof. Background technique [0002] Fluorescence is a photoluminescent phenomenon. The so-called "fluorescent paint" refers to a paint that emits light when irradiated by an ultraviolet lamp. Its characteristic is that it emits light when it is irradiated with ultraviolet rays, and it is completely dark when the irradiation is stopped. Composite fluorescent paint refers to the doping of fluorescent compounds into the paint polymer matrix, so that the cured coating has a fluorescent effect. Fluorescent coating is also called security coating because of its anti-counterfeiting effect. Nowadays, fluorescent coatings are more and more widely used in military camouflage, protective clothing for road and high-altitude operations, daily necessities, special photosensitive materials and information stora...

Claims

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Application Information

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IPC IPC(8): C08G59/14C09D163/00C09D5/22C09K11/06
CPCC08G59/1477C09D5/22C09D163/00C09K11/06C09K2211/1425C09K2211/145
Inventor 李为立徐泽孝
Owner SUZHOU JIREN HIGH TECH MATERIAL CO LTD